What phonetic features lead to linguistic profiling?

Write a research proposal with 500 word min, double spaced. The research topic is linguistic profiling, and the question in mind is “What phonetic features lead to linguistic profiling?”. Should include 1 peer reviewed source with APA formatting. Also, both the handout and rubric are attached as well.

Answer to 1.b: I’m interested in phonetics and how people perceive it.

Thank you.